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Document Title |
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7565078 |
Thread structure for an optical lens
A thread structure for an optical lens comprises a plastic lens barrel, and the thread structure is formed on an outer surface of the lens barrel. In each single circle of the thread structure...
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7507063 |
Snap ring with recessed interior contour
A snap ring for applications requiring cleanliness has a novel recessed interior contour that reduces debris generation during installation of the snap ring. The snap ring is suitable for...
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7344346 |
Fast fasten and loose resistant bolt and nut structure
A bolt and nut structure has a bolt nail, a nut nail and an elastic tube. The elastic tube has several outward plates, several convex blocks, a convex edge, and an elastic gap. The edge of the...
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7222829 |
Antenna mounting structure
For mounting an antenna device on a first side of a panel body, a mount screw is protruded from the antenna device and formed with a slit extending from a distal end face thereof in an axial...
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7214020 |
Looseness resisting screw and stud hole
A looseness resisting screw formed with an external thread includes a first thread area having a substantially uniform outer diameter and a second thread area extended from the first thread area...
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7163366 |
Screw with two types of threads
A screw includes a first thread on the shank and located close to the point of the shank, and a second thread which is connected to the first thread and extends toward the head of the screw. Each...
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7160073 |
Tapping screw
A tapping screw fastened to a subject member in which a thread portion formed in a shaft portion of the tapping screw is used to form a female screw thread in a prepared hole of the subject member....
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7070376 |
Self-drilling, self-anchoring fastener for concrete
A fastener adapted for anchoring into a masonry structure, such as a concrete block, employs an epoxy resin system so that the fastener is both mechanically engaged and bonded to the structure. In...
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7063491 |
Reverse barb system for screws and nails
The reverse barb system for screws and nails includes fasteners that are barbed to prevent backing out once driven into a workpiece or construction material, such as wood. A screw with barbed...
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6926484 |
Threaded fastener for use within multiple substrates
A threaded fastener has a substantially single helical thread formed upon a shank portion thereof, and a plurality of substantially saw-blade type or serrated teeth are formed upon crest portions...
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6676352 |
Fasteners with improved retaining effect
A fastener includes a main body having a number of spaced ridges formed on an outer periphery thereof. The ridges are arranged along a helix. At least one of the ridges has a retainer extending in...
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6604899 |
Sealable fastener with circumferential sealant channel and sealant delivery passageway for delivering sealant into the circumferential sealant channel
A sealable fastener for insertion into an fastener opening in a receiving structure includes a fastener shank including a shank first end having a shank first end wall and a shank second end having...
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6588999 |
Sealable fastener with sealant delivery passageway to circumferential sealant channel
A sealable fastener for insertion into a fastener opening bore in a receiving structure includes a fastener shank including a shank first end having a shank first end wall and a shank second end...
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6334747 |
Nut, bolt, and thread unit of female and male thread members
The nut has a tool engaging region or a hexagonal region and a flange region provided on a thread end of the hexagonal region. A sloped step sloping at an angle to the center line of the nut is...
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6176664 |
Fastening screw and method of forming same
A fastening screw having an elongate shank (1), and a drilling tip (2) and a head (3) provided at respective opposite ends of the shank (1). The drilling tip (2) has a cutting edge (5) for cutting...
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6158938 |
Anti-cross threading fastener
An anti-cross threading fastener having a threaded shaft portion with a major diameter and a minor diameter, a leading end shaft portion devoid of screw threads and having a diameter less than the...
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6152666 |
Screw for use as a fastener in fibrous material such as wood
The thread (15) of a wood or the like screw has pairs of V-shaped recesses (22, 23) in the edge of a selected intermediate length of the thread (17). Each pair defines a W-shaped cutout (19, 20,...
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6146047 |
Fastener and fastening structure
Provided are a fasterner enabling a plurality of members to be joined strongly and simply in a manner permitting ready disassembly and a fastening structure enabling a plurality of members to be so...
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6135689 |
Self-locking fastener
A self-locking fastener wherein crests of respective threads of a part of a group of threads on the self-locking fastener are deformed to provide a group of lock portions so that the respective...
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5759003 |
Combined screw and clearance drill
A combination screw and clearance drill is provided that in one mode of operation is able to drill a pilot hole for the screw threads through a top piece of material and then screw into a lower...
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5687533 |
Method and apparatus for connecting window frame segments
A corner lock includes a first member that is secured to a first window frame segment and a second member that is secured to the first member and a second window frame segment. The first member is...
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5653006 |
Passenger-side airbag module darted end caps and method of assembly
The screws which are normally employed to attach the end plates to the trough-shaped main body of a passenger-side airbag module reaction canister are replaced by impact-driven darts. The darts are...
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5609455 |
Anticross-threading male fastener
An externally threaded male fastener has a right circular cylinder at one end that is slidably engageable with the internal threads of a female element, a pair diametrically opposed...
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5564874 |
Fastening element in the form of a fiber-reinforced ceramic screw and/or nut for ceramic components
A fastening or connecting device for fiber-reinforced ceramics to be used in high temperature ranges is in the form of a screw that is manufactured of a ceramic material in the shape of a plate...
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5443331 |
Threaded bar construction
A threaded bar construction and bar stock and nut combination useful in the mining industry and also in the concrete industry; the bar stock is provided with raised thread segments which appear...
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5340253 |
Fastener with thread lock
A threaded fastener that self locks as it is tightened to a fastened object. The thread includes one or more portions that are shifted, resulting in one or more discontinuities in the thread. Each...
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5306983 |
Support device for a picture tube component
A support device for a deflection unit (10) for a picture tube comprises pins (17) which in a longitudinal direction carry a thread (19) over part of their circumferences. The pins run in guide...
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5300076 |
Percutaneous bone screw for supporting a stereotaxy frame
The screw (1) comprises an end formed by a dog point (2) having a plane transverse surface (3) and a cylindrical lateral surface (4) connected to the plane surface (3) by a rounded annular radius...
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5267423 |
Self-drilling anchor and bearing plate assembly
A self-drilling anchor and bearing plate assembly adapted to secure a membrane or other layer onto a roof deck or a similar substrate formed of a material that requires a drilled hole to receive...
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5234291 |
Roof bolts
The roof bolt tendon comprises a length of square twist steel with a partial thread formed directly thereon over at least part of its length. The partial thread, which may extend for the full...
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5110245 |
Thread forming screw
This invention relates to an improvement of a thread forming screw including driven head, cylindrically formed shanks rolled type thread which has a following flank angle smaller than a...
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5064327 |
Oblique point fastener
A blank and fastener formed from the blank for a thread-forming fastener which provides axially aligned driving. A tip portion of the blank is formed in a conical shape at an oblique angle to the...
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5044853 |
Thread-cutting screw
A thread-cutting screw where the edge of the screw is at least partially undulating. The undulating edge has recesses in the shape of a parabola interrupting the flank face of the thread. The...
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4993575 |
Quick closure box
A quick closure box is disclosed, in which the lid is fixed to the base by means of a small pitch screw engaged in an extension having a large pitch thread for engagement in a hole comprising...
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4981406 |
Fastener screw thread and pilot to avoid cross threading
A screw or bolt has a conventional threaded shank and a tapered pilot or lead end for easy entry to a threaded receptacle or nut. A pilot lead extends axially from the end of the shank. In one...
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4979718 |
Lockable elevating mechanism for the continuous adjustment of seats, table tops or similar items of furniture
In a lockable elevating mechanism for the continuous adjustment of chair seats, table tops or the like, a guide sleeve (1), attachable to a pedestal (4), and a length-adjustable lockable gas spring...
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4952110 |
Anti-cross thread screw
A threaded fastener has an eccentric tip with a smooth portion and a threaded portion. The smooth portion when viewed in side elevation defines an edge on a curve with an arcuate slope and the tip...
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4907989 |
Terminal block insert device screw
Improved terminal blocks having inserts comprising a spring-loaded stirrup for clamping electrical conductors, together with a screw for adjusting the clamping action of the stirrup and for...
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4900210 |
Push in-screw out fastening system
A fastening system comprises a push in-screw out fastener having a slotted head, threaded cylindrical shank with a plurality of resilient thread segments thereon and a tubular receptacle. The...
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4861206 |
Straddling plug
A plastic straddling or expansion plug having a closed plug neck and a closed plug foot both with a longitudinal aperture into which a screw can cut a thread. The plug includes a shank having a...
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4844676 |
Self-penetrating screw
A self-penetrating screw for penetrating sheet metal and then bolting a panel or other member to the penetrated sheet. The screw is hardened and has a penetrating point, a bolt-like shank and a...
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4842467 |
Concrete screw
A self-tapping screw for use on concrete and masonry structures is disclosed. The screw has a helically threaded shank of uniform diameter. The crest diameter of the helical thread on the shank has...
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4836730 |
Fastener
A drilling and thread forming fastener is provided having a threaded shank and a pilot end. The fastener pilot end in cross section has a major and minor axis intersecting at the fastener center of...
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4806054 |
Male threaded fastener capable of use with a swaged collar
A male threaded fastener has a plurality of impressions on the nonload-bearing flank of the thread that receives material swaged from a collar to lock the collar and pin together and increase the...
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4790702 |
Nut and bolt assembly
A nut and bolt assembly includes a bolt having at least one external threaded portion and at least one adjacent unthreaded portion along its length and a nut having an internal threaded portion...
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4789288 |
Anti-cross threading screw
A screw having a tapered and offset tip with a partial thread prevents cross-threading of the screw when inserted into a nut. The offset tip is a section of a conical frustum. The axis of the...
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4655723 |
Child's activity ring toy
A child's activity ring toy having first and second concentric ring portions, at least a part of at least one of the ring portions having thread segments along a multiple screw path with adjacent...
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4652194 |
Anchor bolt
An anchor bolt consisting of a shank screwed into a bore in a structural body made of concrete etc. having a screw thread with notches, and a root of thread between the screw thread. The entering...
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4646715 |
Extension apparatus for damper control shaft
There is disclosed an extension apparatus for a damper assembly having an extension member for effectively extending the damper assembly control shaft and a securing member for securing the...
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4638994 |
Quick-bolt locking system
A tubular main bar, internally threaded, with buttress teeth, from each end, with a stop in the middle, and an inner bar inserted in each end, having a single tooth element, spring pressed radially...
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